J.D. Vance wins and accepts the 2028 Republican presidential nomination.
Vance is widely viewed as a potential successor at the top of the Republican ticket. Resolves if he officially secures the 2028 nomination.
Across 6 frontier models answering independently, the panel leans no: the median is 44%.
They do not agree: Qwen puts it at 74% and Gemini at 37%, 37 points apart. A spread that wide usually means the question turns on something none of them can see yet.
Money disagrees. The market sits at 40%, so the models are 4 points more confident than people with cash on the outcome.
Nothing is settled until 8 Nov 2028, when the outcome is checked against sources and every number above gets a permanent score.
- AI edge
- +4 pts
- Moved this week
- -6 pts
- Volume
- $16.2M
The models are slightly more confident than traders risking real money: 44% against 40%.
What each one said
-
QwenAlibaba
Sitting VPs who run have won their party's nomination every time since 1960; the risk is Trump turning or Vance opting out.
- Every modern sitting VP who sought their party's nomination won it (Gore '00, Biden '20, Bush '88, Humphrey '68), giving a near-perfect base rate.
- Trump has publicly signaled Vance as preferred successor, and a Trump endorsement in a GOP primary is close to dispositive post-2016.
- A Trump reversal, a major Vance scandal, or an unexpected decision not to run are the main paths to 'No'—each individually unlikely but collectively non-trivial over two…
74% -
DeepSeekDeepSeek
Vance is the clear heir, but sitting VPs historically face real primary risk and Trump's favor is the whole ballgame.
- No incumbent since 1888 has faced a serious convention fight, but open-seat cycles (2000, 2016) show frontrunners lose roughly a third of the time.
- Vance leads every 2028 GOP poll and has Trump's endorsement posture, plus the RNC's 2024 rules bind delegates to primary results, favoring the polling leader.
- Trump's health and approval by 2027-28 are the swing variables; a Trump falling-out or a Rubio/DeSantis surge would be the development that flips this.
62% -
ClaudeAnthropic
Vance is the clear frontrunner as sitting VP, but 2+ years leaves room for Trump interference, health, scandal, or primary upset.
- Sitting VPs who want the nomination usually get it absent a crisis, and Trump has signaled Vance as heir apparent.
- Risks: Trump could back someone else late, midterm losses could weaken Vance, or a rival (Rubio, DeSantis) consolidates anti-Vance support.
- Long time horizon to 2028 convention means meaningful uncertainty remains despite Vance's current strong position.
45% -
GrokxAI
Trump endorsement plus Vance surviving a crowded 2028 primary.
- Vance must enter by late 2027 and lock a majority of delegates before the summer 2028 convention.
- Term-limited-president VPs were nominated 3/3 since 1960, yet Trump’s brand and rivals like DeSantis cut that base.
- A Trump-Vance split or outsider surge would collapse the odds fastest.
42% -
GPTOpenAI
It turns chiefly on whether Vance retains Trump’s coalition while avoiding a serious primary alternative by 2028.
- Vance must win delegates and formally accept at the 2028 convention; no party body can simply designate him beforehand.
- Open-seat succession favorites often lose contested primaries, but vice-presidential visibility and MAGA alignment make him unusually strong.
- A Trump break with Vance, a poor 2026 GOP midterm, or a stronger governor-level rival would sharply reduce his path.
38% -
GeminiGoogle
His viability hinges entirely on Donald Trump's sustained endorsement and the administration's approval ratings entering 2028.
- Sitting or former VPs historically capture the primary roughly half the time, giving him an immediate structural advantage.
- He must ward off MAGA challengers like DeSantis or Rubio and retain Trump's personal blessing through a turbulent second term.
- A major rupture with Trump or disastrous midterms in 2026 would swiftly shatter his status as the heir apparent.
37%
6 of 6 models answered · 37 points between the highest and lowest. None was shown the market price.
Resolution criteria
This market will resolve to “Yes” if the named individual wins and accepts the 2028 nomination of the Republican Party for U.S. president. Otherwise, this market will resolve to “No”. The resolution source for this market will be a consensus of official Republican Party sources. Any replacement of the Republican nominee before election day will not change the resolution of the market.
Question sourced from Polymarket on 26 Oct 2026. Forecast by google/gemini-3.8-flash, anthropic/claude-sonnet-5, openai/gpt-5.6-terra, x-ai/grok-4.6, deepseek/deepseek-v4.1-flash, qwen/qwen3.8-max-0902 via OpenRouter.